Ezra baily



` the carriage and ways-to an enlarged scale.

i es e @rf o @dem @er/@w wwea/eamw EZRA BAILY, OF CINCINNATI, OHIO, ASSIGNOR TO IIIMSELFAND JOSlQPI-I PARKER, OF COVINGTON, KENTUCKY.

Letters.Patate?l No, 83,684, 'elated November 3, 1868.

IMPIROVEMEIN'I.1 IN PLANK AND TIMBER-DRESSER.

The Schedule referred to in these Letters Patent and making part of thesame.

to move in a circular are of greater or less curvature, as desired.

The carriage may be driven by a pinion, K, gearing into a rack, L, onthe under side of the carriage, and povided with customary fast andloose driving-pulleys,

N. A rapid backward strokeA of the carriage may be effected by afriction-wheel, or otherwise.

O is a hand-wheel or crank of a pinion, R, which, after the dressing hasbeen effected, enables the at tendant to run the carriage slighdyforward or backward for trimming the ends of the timber to a denitelength, or other purpose.

By drawing the shaft of the pinion It toward the operator, said pinionmay be ungeared from the rack. This hand-wheel and pinion may, however,be omitted, if preferred.

To whom it may concern:

Be it known that I, EZRA BkmY, of Cincinnati, Hamilton county, State ofOhio, have invented a new and useful Plank and Timber-Dressing Machine,of which the following is a full, clear, andexact description, referencebeing had to the accompanying drawings, making part of thisspecification.

My invention relates to the class of devices employed for dressing theedges of joists, planks, decking, andl other timber, either to astraightor to any curved or cambered form desired.

And my invention consists in a certain arrangement of paired and rotarycutters, upon vertical and stationary but adjustable axes, incombination with a bed or carr` e, which is guided in a circular arc, ofany desired curvature, by a pair of hinged and adjustable ways ortracks, as hereinafter described.

Figure I is a top View of a machine embodying my invention, the carriagebeing removed.

Figure 2 is a longitudinal section thereof. Figure 3 is a transversesection at the line :vg-:v of

pressure-rollers P P'.

Disk-cutter heads, V, as in figs. 4, 5, and 6, may be substituted forthe cutter-heads J J', especially for working squarelogs, or other largetimbers.

The term stationary heads in this specification and claim, refers torotary cutter-heads, whose axes of rotation, although capable of lateraladjustment, remain atI rest while at work.

I am aware that the edges-of j oists have been dressed to a given curveor camber by means of cutter-heads, to which a lateral motion, while inoperation, has been imparted 'by means of a curved guide or pattern,and, therefore, make no claim to such. l

I am also awareA that a hinged guide-way or track has been proposed inconjunction with one or more saws, and I therefore disclaim novelty insuch a guideway, other than in the special combination withmycutter-heads J J.

I claim as new, and of my invention- '.Ihe adjustable hinged rails.C D,jaws I I', carriage I-I, and adjustable heads J J herein described,arranged to operate for the purposes set forth.

Figures 4, 5, and 6 are, respectively, a side, top, and end elevation,of a disk-cutter, as used in this connection.

The frame A supports a pair of tracks or rails, of which one, B, is madefast to the frame throughout its length, while the other one orguide-rail is in two pieces, C and D, connected to each other and to theframe by a hinge, E,

From the hinge E the parts C and D are made to converge more or lessvtoward the rail B, or, when desired, are brought parallel thereto bymeans of setscrews Fand Gr.

The stuff or timber to be dressed is supported upon a carriage, H, whichsimply rests upon the rail B, and which is held to the guide-rail C D byjaws I I', which are firmly fastened to the under side of the carriageH, near its ends.

J J are a pair of cutter-heads, on vertical or nearly vertical shafts,and adjustable laterally to the width of the stuif, by means of screws gg', but stationary while hand. in operation. v- EZRA BAILY. The twomembers, C D, of the guide-rail, being ad# Witnesses:

Gno. H. KNIGHT,

jnsted toa greater or less angle, with respect to each JAMES H. LAYMAN.

other, by the set-screws F and Gr, compel the carriage The stuff is heldto the carriage by means of suitable .I

. In testimony of which invention, I hereunto set my -f

